Forked with love from @unity-ui by Mr. Steve Smith - orderedlist. I just want to make it more personal.
Clone package and use apm to install:
$git clone https://github.com/binhsonnguyen/yosemite-ui.git
$cd yosemite-ui/
$apm link .
If you want to update, browse to packages folder of your atom, and:
$cd yosemite-ui/
$git pull